Pet backpack



FIG. 1 is a front, right and bottom perspective view of a pet backpack showing my design.

FIG. 2 is a rear, left and top perspective view of a pet backpack showing my design.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left-side elevation view thereof.

FIG. 6 is a right-side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is an enlarged view of portion 9 shown in FIG. 7 .

FIG. 10 is an enlarged view of portion 10 shown in FIG. 7 .

FIG. 11 is an enlarged view of portion 11 shown in FIG. 7 .

FIG. 12 is an enlarged view of portion 12 shown in FIG. 7 .

FIG. 13 is an enlarged view of portion 13 shown in FIG. 7 .

FIG. 14 is a front, right and top perspective view of another state of the pet backpack thereof; and,

FIG. 15 is a rear, left and bottom perspective view of another state of the pet backpack thereof.

The dash dot lines illustrate portions of the pet backpack which are being enlarged, and form no part of the claimed design. 

CLAIM The ornamental design for a pet backpack, as shown and described. 